commonMain.org.jetbrains.letsPlot.stat.stat_density2d.kt Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of lets-plot-kotlin-kernel Show documentation
Lets-Plot Kotlin API without dependencies.
There is a newer version: 4.9.2
Show newest version
/*
 * Copyright (c) 2021. JetBrains s.r.o.
 * Use of this source code is governed by the MIT license that can be found in the LICENSE file.
 */

package org.jetbrains.letsPlot.stat

import org.jetbrains.letsPlot.Stat
import org.jetbrains.letsPlot.intern.GeomKind
import org.jetbrains.letsPlot.intern.Options
import org.jetbrains.letsPlot.intern.layer.GeomOptions
import org.jetbrains.letsPlot.intern.Layer
import org.jetbrains.letsPlot.intern.layer.PosOptions
import org.jetbrains.letsPlot.intern.layer.SamplingOptions
import org.jetbrains.letsPlot.intern.layer.WithColorOption
import org.jetbrains.letsPlot.intern.layer.geom.Density2dMapping
import org.jetbrains.letsPlot.intern.layer.geom.PathAesthetics
import org.jetbrains.letsPlot.intern.layer.stat.ContourStatAesthetics
import org.jetbrains.letsPlot.intern.layer.stat.Density2dStatAesthetics
import org.jetbrains.letsPlot.intern.layer.stat.Density2dStatParameters
import org.jetbrains.letsPlot.pos.positionIdentity

@Suppress("ClassName")
/**
 * Displays density function contour.
 *
 * @param data The data to be displayed in this layer. If null, the default, the data
 *  is inherited from the plot data as specified in the call to [letsPlot][org.jetbrains.letsPlot.letsPlot].
 * @param geom The geometry to display the density stat for this layer, default is 2D density,
 *  see [Geom][org.jetbrains.letsPlot.Geom].
 * @param position Position adjustment: `positionIdentity`, `positionStack()`, `positionDodge()`, etc.
 *  see [Position](https://lets-plot.org/kotlin/-lets--plot--kotlin/org.jetbrains.letsPlot.pos/).
 * @param showLegend default = true.
 *  false - do not show legend for this layer.
 * @param sampling Result of the call to the `samplingXxx()` function.
 *  To prevent any sampling for this layer pass value `samplingNone`.
 *  For more info see [sampling.md](https://github.com/JetBrains/lets-plot-kotlin/blob/master/docs/sampling.md).
 * @param x X-axis coordinates of the center of rectangles, forming a tessellation.
 * @param y Y-axis coordinates of the center of rectangles, forming a tessellation.
 * @param z Value at point (x, y).
 * @param alpha Transparency level of a layer.
 *  Understands numbers between 0 and 1.
 * @param color Color of geometry.
 *  String in the following formats:
 *  - RGB/RGBA (e.g. "rgb(0, 0, 255)")
 *  - HEX (e.g. "#0000FF")
 *  - color name (e.g. "red")
 *  - role name ("pen", "paper" or "brush")
 *
 *  Or an instance of the `java.awt.Color` class.
 * @param linetype The type of the line.
 *  Codes and names: 0 = "blank", 1 = "solid", 2 = "dashed", 3 = "dotted", 4 = "dotdash",
 *  5 = "longdash", 6 = "twodash".
 * @param size Lines width.
 * @param weight Used by the stat to compute weighted density.
 * @param bw The method (or exact value) of bandwidth. Either a String (choose among "nrd0" and "nrd"),
 *  or a Double array of length 2.
 * @param kernel The kernel used to calculate the density function. Choose among "gaussian", "cosine", "optcosine",
 *  "rectangular" (or "uniform"), "triangular", "biweight" (or "quartic"), "epanechikov" (or "parabolic").
 * @param n The number of sampled points for plotting the function (on x and y direction correspondingly).
 * @param adjust Adjusts the value of bandwidth by multiplying it. Changes how smooth the frequency curve is.
 * @param contour If true, contour the results of the 2d density estimation.
 * @param bins Number of levels.
 * @param binWidth Distance between levels.
 * @param colorBy default = "color" ("fill", "color", "paint_a", "paint_b", "paint_c").
 *  Defines the color aesthetic for the geometry.
 * @param mapping Set of aesthetic mappings.
 *  Aesthetic mappings describe the way that variables in the data are
 *  mapped to plot "aesthetics".
 */
class statDensity2D(
    data: Map<*, *>? = null,
    geom: GeomOptions = GeomOptions(GeomKind.DENSITY2D),
    position: PosOptions = positionIdentity,
    showLegend: Boolean = true,
    sampling: SamplingOptions? = null,
    override val x: Number? = null,
    override val y: Number? = null,
    override val z: Number? = null,
    override val alpha: Number? = null,
    override val color: Any? = null,
    override val linetype: Any? = null,
    override val size: Number? = null,
    override val weight: Number? = null,
    override val bw: Any? = null,
    override val kernel: String? = null,
    override val n: Int? = null,
    override val adjust: Number? = null,
    override val contour: Boolean? = null,
    override val bins: Int? = null,
    override val binWidth: Number? = null,
    override val colorBy: String? = null,
    mapping: Density2dMapping.() -> Unit = {}
) : PathAesthetics,
    ContourStatAesthetics,
    Density2dStatAesthetics,
    Density2dStatParameters,
    WithColorOption,
    Layer(
        mapping = Density2dMapping().apply(mapping).seal(),
        data = data,
        geom = geom,
        stat = Stat.density2D(),
        position = position,
        showLegend = showLegend,
        sampling = sampling
    ) {
    override fun seal(): Options {
        return super.seal() +
                super.seal() +
                super.seal() +
                super.seal() +
                super.seal()
    }
}